MESON Chess Problem Database

Problem Display
PID: 60096 (6N1/Q7/2k3n1/7R/P3b3/1P1N1B2/8/1K2R3 w - - 0 1)

Tompuri, Ismo

Valtonen, Kari

Suomen Shakki, 1999

6N1/Q7/2k3n1/7R/P3b3/1P1N1B2/8/1K2R3

#2

9 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf3
      • 2.Re6#
    • 1...Bd5
      • 2.Re6#
  • Tries
    • 1.Rh7?
      • threat
        • 2.Qc5#
      • 1...Kd5
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Se7!
  • Keys
    • 1.Rd5!
      • 1...Bxd3+
        • 2.Rxd3#
      • 1...Kxd5
        • 2.Qd7#
      • 1...Bxf3
        • 2.Sb4#
      • 1...Bxd5
        • 2.Re6#
      • 1...Sf4
        • 2.Se7#
      • 1...Bf5
        • 2.Rc1#
      • 1...Sh4
        • 2.Se7#
      • 1...Se5
        • 2.Se7#
      • 1...Se7
        • 2.Sxe7#
      • 1...Sf8
        • 2.Se7#
      • 1...Sh8
        • 2.Se7#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • B(a);N_PINS(D),N_SPINB(a),OGATE,XB(E)::R(B)
    • B(a);N_PINS(D),OGATE::R(B)
  • Tries
    • Try
      • R(G);
      • Threat
        • QAR1(H)
      • Vars
        • K(b);S_FLIGHT::QAR2(H)
        • K(b);N_SPINB(a),P-FLIGHT::QAR1(H)
      • Refutation
        • S(c);
  • Actual
    • R(G);N_PINB(a)
    • Vars
      • B(a);CHECK,OGATE,XS(D)::B(E)+R(G),XB(a)
      • K(b);P_SPINB(a),S_FLIGHT,XR(G)::QAR2(H)
      • B(a);N_PINS(D),XB(E)::S(D)
      • B(a);N_PINS(D),OGATE,P_SPINB(a),XR(G)::R(B)
      • S(c);N_GUARD::S(I)
      • B(a);::R(B)
      • S(c);N_GUARD::S(I),XS(c)
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